Boiler



Dec. 11, 1951 c. z. ALEXANDER 2,577,728

BOILER Filed Nov. 10, 1948 2 swam-swam 1 I f? 3 v JNVENTOR.

2 CARL z. ALEXANDEQ BY I I i k? U 4 A ArTOQA/En;

Dec. 11, 1951 c. z. ALEXANDER BOILER 2 SHEETSSHEET 2 Filed Nov. 10, 1948 INVENTOR. CAQL z ALEXA/V052 ATTO/ZNE Y5 Patented Dec. 11, 1951 UNITED STATES PATENT OFFICE 2,577,728 BOILER Carl Z. Alexander, Hopatcong, N. J. Application November 10,1948, Serial No. 59,375

1 Claim.

1 This invention relates to boilers adapted to the generation of steam for heating purposes or the like and further adapted to serve as the heat generating source of a hot water heating system.

. In the evolution of the boiler, the trendhasg,

,been to separate the water into as many com-j municating parts as possible and to apply heat to each of the parts in the most efficient manner possible.

It is an object of the instant invention to provide a boiler of the geyser type'in which the efficiency is substantially increased over known y es.

A further object is to provide a boiler adapted to respond more quickly to the application ofv heat than heretofore possible. r

Other objects of the instant invention will become apparent in the course of the following specification.

In the accomplishment of these objectives, the boiler is formed with a fire box atthe front of the base. A refractory wall forms the firebox and partially supports water walls which extend.

' secured in the water trough and eXtBl'ljldiIlP:

wardly within and above the rim of the nipple inthe upper chamber so that thewaten'agitated by the heat in the lower chamber is passed upwardly to the upper chamber, the excess water being returned to the lower chambenthrough the nipple as the level of water in the upper chamber exceeds a predetermined magnitud 'Ihe ilre -hox' is so designed that baflle wallgat the backfbut in front of the water trough of the lower water chamber will direct the piijducts of combustion upwardly to the base of theflower chamber at the front and thence downwardly around the outside surface portion of the water trough toward the back of the lowerphamber where an opening therethrough permits \the products of combustion to pass upwa dly to a spae formed between the two chambers [Bathe plates" and the flue outlet are so arrange spacebetween the two chambers thi' th ,g op posed s. face portion of each chamber isLthor- 2 oughly bathed with the products of combustion prior to passing out of the flue outlet.

The invention will appear more clearly from the following detailed description when taken in connection with the accompanying drawing showing by way of example a preferred embodiment of the inventive idea.

In the drawings:

Figure 1 is a view in perspective with part of the walls broken away'to show the interior of the boiler constructed in accordance with the principles of this invention.

' Figure 2 is a vertical sectional view of the taken on line 22 of Figure 1.

Figure 3 is a view along the line 33 of Figure 2.

Figure 4 is a view along the line 4-4 of Figure 2.

Referring now in greater detail to the drawings in which like reference numerals indicate like parts, reference numeral l0 (Fig. 1) indicates the outer jacket, I2 the fire box, l3 the water walls communicating with a lower horizontal water chamber 14, l 5 the upper horizontal water chamber, and 16 the geyser tube.

The fire box 12 may be made of refractory material having side walls of arcuate form as most clearly shown in Figure 1 and with a base member 20 (Fig. 2) of similar material. It will be noted in Figures 1 and 2 that the fire box 12 occupies only a portion of the bottom of the boiler at the front so that the refractory wall serves as a bafile in directing the heat as later shown. In the front of the fire box I 2 is an opening 2| for the insertion of any suitable heat source 22 (Fig.1).

Directly above the fire box I2 and partially supported thereby, are the communicating water walls l3 which may be formed with spaced parboiler allel members 23 and 24 (Fig. 2) closed at the nish a domestic hot'water supply, the ends of the coil -26'being connected through the plate 25with the hot water system ih a known manner. Alon the-bottom 'surface -portion of the chamber l4 is a watertrough ZTcoinmunicating with the chem-- her M. The trough 21 is placed intermediate the fire box l2 and the back of the boiler in order that the heat generated in the fire box will be directed upwardly against the base of the chamber l4 and thence downwardly and upwardly around the trough 21 to the flue opening 28 at the back which passes through the chamber I4 to direct the products of combustion to the passage way 29 formed between the chamber l4 and the later described upper chamber 15.

The upper horizontal water chamber I5 is disposed in spaced parallel relationship to the lower chamber I4 and is similar thereto except for the communicating water walls l3 of the lower cham her and the trough 21. Any suitable means may be used to maintain the upper chamber inposition and it may be so formed that the cover of the outer jacket Ill serves also as the cover for that chamber. the bottom surface portion of the upper chamber l5 .and the top surface portion of the :lower chamber l4, both of the openings being aligned with the water trough 2i. A nipple 3.0 is'disposed through the openings with the top extending upwardly into the upper chamber to maintain the desired water level. Through the nipple .30, a geyser tube 16 is passed with the base thereof in the base of the water trough 2"! and the top *extendingthrough the nipple 3& to a point above the'upper rim as shown in Figure 1. Obviously, the registering openings between the two chambers and the nipple therebetween could be aligned over the length of the water trough 21 and a number of geyser tubes used. 7

Referring now to Figure 3, the top of the nipple is shown and on one side of which at the .backis a flue outlet 3! leading to a chimney (not shown). On the opposite side of the nipple33is the passageway 28 for the products of combustion passing through the lower chamber 14 as previously shown. Between the flue .outlet 3 I and the flue passageway 28 is a vertically disposed bafile plate 32 which completely closesthe passageway 29 at that end. Extended forwardly of the nipple 30 is a coacting baffle plate '33 todirect the products of combustion over the .opposed surface portions of the chambers l4 and 15 that is-the ceiling of chamber [4 and the floor of chamber l5 before passing out of the boiler through the flue outlet 3|. 7

Means are provided for withdrawing the generated steam from the top of the upper chamber 15 through the outlet 34. A flame inspection port may be formed through the front wall of the fire box l2 and removably covered by the pivot ally mounted member 36. In addition, means are provided for introducing water into the chamher and an opening at the front of the passage- Way 29 removably covered by the plate 31 may be provided for cleaning purposes.

The space between the lowerchamber 14 and the upper chamber 15 is enclosed except for the pxer lr'mentioned openings brany suitablemeans sup orting the upper chamber in Spaced relationwith the lower chamber.

The. outer jacket I0 is 'formed'with thespaced parallel front member 38 and back member 39, the side member 40 spaced parallel to a corre sponding member on the opposite side (not shown) and in such a manner as to leave a workins pace at the front of the boiler.v Thecover memberll completes theouter Jacket 110 :allof th members of which are joined along correspondingedgesand the cover member 4, l.may be Qse l red over the top of theunper chamber 14 Registering openings are'madeiin.

that a substantially steam tight closure results. The front member 38 is provided with a removable portion 42 for servicing the boiler and insulating material may be used between the sides and back of the inner components and the opposed surfaces of the jacket.

The operation of the boiler is as follows: Water is inserted in the upper chamber [5 until it is filled to the top of the nipple 30 whereupon the excess water spills through the Jnipple30 to fill the water Walls I3, the water trough 21, and lower chamber M to a level which may be regulated by any known means. The boiler filled and the water turned off, heat is applied in the fire box l2 by any known means. Thegenerated heat lrises'to .bathethe bottom surface portion of the lower chamber 14, the water walls I 3, and the water trough Hon-passing toward the passageway .28., thence through the passageway 28 into the space 29 between the chambers where the baflle plates 32 and 33 direct the generated heat over. the ceiling of the lower chamber l l-and'the floor .ofJthe-upper chamber 15. before passing out of the flue opening 3! to the chimney (not shown), By the use of the water walls It a highly efficient boiler is provided. By the use of the water trough 21, a portioncf the water in the lower chamber is in the path of the most intense heat giving rapid action to'the geyser tube I6 in raising the heated Water to the level of the upper chamber l5- The use of the baffle plates 32 and 33 insures the maximum heat transfer to both chambers E4 and I5. In the case of a stokerfired boiler, the water trough 21 serves as a fly ash separator which contributes further to a boiler requiring relatively slight maintenance.

Obviously, the boiler could be of other than rectangular shape and more than two water chambers could be used with a geyser tube extending upwardly from the lower to the adjacent higher except in the uppermost chamber. In thecase of a plurality of water chambers, only the space between the two uppermost chambers need be provided with the baflie plates 32 and 33 since a passageway could be provided through alternate ends of adjacent chambers until the two uppermost are reached and assuming that the line outlet is provided in the space between the two uppermost chambers. For these reasons, it is apparent that the illustrations shown above have been given by way of illustration and not by way of limitation and that the structures above described are subject to wide variations and modifications without departing from the scope or intent of the present invention, all of which variations and modifications are to be in"- cludedwithin th scope of the present invention.

What is claimed is: In a boiler having an upper horizontal water chamber, a passageway for the products of combustion below the upper chamber and a lower horizontal water chamber below the passageway with a fire bex-below and 'at the front of the Iowei-Jcha'mber, the water chambers and the fire box-and the passageway being enclosed','the water chambers further being interconnected through the passageway by a vertical nipple substantially along the longitudinal center line of the passage way and adjacent/the rear wall thereof, the passageway further having an outlet to a 'flue through-the rear wall .andito. one side of thenipe plej: the-improvements. comprising a second pass sageway-forithe products .of combustion :irom -the fire box throng-bathe. lower water chamber tntlre first passageway, thesecond passageway being 5 positioned rearwardly of the transverse central plane of the nipple and on the side opposite the outlet to the flue in the first passageway, a baffle disposed in the first passageway between the nipple and the rear wall of said first passageway and intermediate the outlet to the flue and the second passageway inlet into the first passageway, and a second baffle disposed in the first passageway on the side of the nipple opposite to the first bafile and extending forwardly of the nipple, both baffles extending between the ceiling of the lower water chamber and the floor of the upper water chamber.

CARL Z. ALEXANDER.

REFERENCES CITED The following references are of record in the file of this patent:

Number UNITED STATES PATENTS Name Date Hitchings July 23, 1867 Richardson Aug. 7, 1883 Rogers June 18, 1895 Mowry Aug. 25, 1914 Ferrier, Jr May 23, 1922 McCarten et al May 15, 1928 Guenther June 11, 1929 Olson Mar. 14, 1933, Hall Aug. 21, 1934 Avery Jan. 8, 1935 Brabbee et a1. Dec. 20, 1938 Georg Jan. 9, 1940 Kolb Jan. 14, 1941 Alexander July 29, 1941 Tribuson June 11, 1946 Cross Oct. 8, 1946 Jones Feb. 4, 1947 

